1
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Bera N, Samanta S, Sarkar D. Stereoselective Synthesis of Oxacycles via Ruthenium-Catalyzed Atom-Economic Coupling of Propargyl Alcohols and Michael Acceptors. J Org Chem 2021; 86:16369-16395. [PMID: 34735155 DOI: 10.1021/acs.joc.1c01758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synthesis of β-hydroxyenones and its application toward development of tetrahydro-4H-pyran-4-one in an atom-economic fashion is limited. This manuscript describes a ruthenium-catalyzed atom-economic coupling of pent-2-yne-1,5-diols and Michael acceptors as an efficient route for the synthesis of β-hydroxyenones with excellent yields and high regioselectivity. The β-hydroxyenones further undergo a 6-endo trig cyclization under acid-catalyzed conditions to deliver the tetrahydro-4H-pyran-4-ones with high diastereoselectivity. An intramolecular aldol condensation under mild basic conditions and palladium-catalyzed oxidative aromatization was developed for the synthesis of hexahydro-6H-isochromen-6-ones and isochromanols, respectively, from highly substituted tetrahydro-4H-pyran-4-ones with excellent yield and diastereoselectivity. Overall, this work demonstrates the synthetic potential toward the synthesis of oxacycles like tetrahydro-4H-pyran-4-ones, hexahydro-6H-isochromen-6-ones, and isochromanols via an atom-economic catalysis.
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Affiliation(s)
- Nabakumar Bera
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela769008, India
| | - Shantanu Samanta
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela769008, India
| | - Debayan Sarkar
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela769008, India
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2
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Ariyoshi S, Sakaguchi K, Nishimura T. Stereoselective Synthesis of Polysubstituted Tetrahydropyranones via Acid-Promoted Cyclization of β-Silyl-γ-ethylidene-γ-butyrolactones with Aldehydes and Ketones. J Org Chem 2021; 86:11884-11894. [PMID: 34387502 DOI: 10.1021/acs.joc.1c01284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
β-Silyl-γ-ethylidene-γ-butyrolactone upon one-pot treatment with aldehydes and ketones in the presence of Lewis acids underwent a tandem Hosomi-Sakurai/Prins cyclization to give polysubstituted tetrahydropyranones stereoselectively. Various aldehydes and ketones can be used in this reaction to produce the corresponding tetrahydropyranones. The optical purity of the starting γ-butyrolactone was substantially retained in the resulting tetrahydropyranones.
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Affiliation(s)
- Shoma Ariyoshi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
| | - Kazuhiko Sakaguchi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
| | - Takahiro Nishimura
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, Sugimoto, Osaka 558-8585, Sumiyoshi, Japan
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3
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Griggs SD, Thompson N, Tape DT, Fabre M, Clarke PA. Synthesis of highly substituted 2-spiropiperidines. Org Biomol Chem 2018; 16:6663-6674. [PMID: 30067258 DOI: 10.1039/c8ob01272e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Spiropiperidines are a highly desirable, yet under represented structure in drug discovery. 2-Spiropiperidines were synthesised in either a two-pot or one-pot reaction. In the two-pot reaction, the addition of a Weiler dianion to N-Boc imines, followed by deprotection and in situ condensation with a cyclic ketone generated functionalised 2-spiropiperidines in good to excellent yields. In the one-pot reaction, the addition of Chan's diene to N-Boc imines under Maitland-Japp conditions, followed by the addition of sodium bicarbonate and a cyclic ketone formed functionalised 2-spiropiperidines in moderate to good yields.
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Affiliation(s)
- Samuel D Griggs
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
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4
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Clarke PA, Nasir NM, Sellars PB, Peter AM, Lawson CA, Burroughs JL. Synthesis of 2,6-trans- and 3,3,6-trisubstituted tetrahydropyran-4-ones from Maitland-Japp derived 2H-dihydropyran-4-ones: a total synthesis of diospongin B. Org Biomol Chem 2016; 14:6840-52. [PMID: 27340028 DOI: 10.1039/c6ob01182a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
6-Substituted-2H-dihydropyran-4-one products of the Maitland-Japp reaction have been converted into tetrahydropyrans containing uncommon substitution patterns. Treatment of 6-substituted-2H-dihydropyran-4-ones with carbon nucleophiles led to the formation of tetrahydropyran rings with the 2,6-trans-stereochemical arrangement. Reaction of the same 6-substituted-2H-dihydropyran-4-ones with l-Selectride led to the formation of 3,6-disubstituted tetrahydropyran rings, while trapping of the intermediate enolate with carbon electrophiles in turn led to the formation 3,3,6-trisubstituted tetrahydropyran rings. The relative stereochemical configuration of the new substituents was controlled by the stereoelectronic preference for pseudo-axial addition of the nucleophile and trapping of the enolate from the opposite face. Application of these methods led to a synthesis of the potent anti-osteoporotic diarylheptanoid natural product diospongin B.
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Affiliation(s)
- Paul A Clarke
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Nadiah Mad Nasir
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Philip B Sellars
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Alejandra M Peter
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - Connor A Lawson
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
| | - James L Burroughs
- Department of Chemistry, University of York, Heslington, York, North Yorks YO10 5DD, UK.
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5
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Sultana S, Devi NR, Saikia AK. Synthesis of Substituted Tetrahydropyrans and Tetrahydrofurans via Intramolecular Hydroalkoxylation of Alkenols. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sabera Sultana
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati 781039 Assam India
| | - Ngangbam Renubala Devi
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati 781039 Assam India
| | - Anil K. Saikia
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati 781039 Assam India
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6
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Ding C, Wang L, Chen H, Wild C, Ye N, Ding Y, Wang T, White MA, Shen Q, Zhou J. ent-Kaurane-based regio- and stereoselective inverse electron demand hetero-Diels-Alder reactions: synthesis of dihydropyran-fused diterpenoids. Org Biomol Chem 2015; 12:8442-52. [PMID: 25225052 DOI: 10.1039/c4ob01040j] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and concise approach for the construction of a 3,4-dihydro-2H-pyran ring integrated into the A-ring of the natural product oridonin using an optimized inverse electron demand hetero-Diels-Alder (IED HDA) reaction is reported herein. A self-dimerization of the exocyclic enone installed in the A-ring through a homo-HDA reaction was identified to exclusively give a dimeric ent-kaurane diterpenoid with the spirochroman core. Moreover, efficient cross-HDA cycloadditions of this enone with various vinyl ethers or vinyl sulfides, instead of its own homo-HDA dimerization, were achieved in a regio- and stereoselective manner, thus providing access to novel dihydropyran-fused diterpenoids as potential anticancer agents to overcome chemoresistance.
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Affiliation(s)
- Chunyong Ding
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX 77555, USA.
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7
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Clarke PA, Sellars PB, Nasir NM. A Maitland-Japp inspired synthesis of dihydropyran-4-ones and their stereoselective conversion to functionalised tetrahydropyran-4-ones. Org Biomol Chem 2015; 13:4743-50. [PMID: 25804802 DOI: 10.1039/c5ob00292c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The Maitland-Japp reaction has been extended to the synthesis of highly functionalised dihydropyran-4-ones. These dihydropyran-4-ones can in turn be converted stereoselectively into tetrahydropyran-4-ones with tertiary and quaternary stereocentres via the one-pot addition of hydride or carbon nucleophiles and trapping with carbon electrophiles. The utility of this method is demonstrated by providing access to the functionalised tetrahydropyran units present in a component of the Civet fragrance and the anticancer polyketide lasonolide A.
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Affiliation(s)
- Paul A Clarke
- Department of Chemistry, University of York, Heslington, York, North Yorkshire YO10 5DD, UK.
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8
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Ahmed N, Konduru NK, Ahmad S, Owais M. Synthesis of flavonoids based novel tetrahydropyran conjugates (Prins products) and their antiproliferative activity against human cancer cell lines. Eur J Med Chem 2014; 75:233-46. [DOI: 10.1016/j.ejmech.2014.01.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 01/11/2014] [Accepted: 01/18/2014] [Indexed: 10/25/2022]
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9
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Tay GC, Gesinski MR, Rychnovsky SD. Formation of highly substituted tetrahydropyranones: application to the total synthesis of cyanolide A. Org Lett 2013; 15:4536-9. [PMID: 23962271 DOI: 10.1021/ol402095g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new tetrahydropyranone synthesis has been developed that leads to cis-2,6-disubstituted 3,3-dimethyltetrahydropyran-4-one rings by condensation of an aldehyde and a hydroxy silyl enol ether. The reaction works with a variety of aldehydes to produce the tetrahydropyranone products in moderate to high yields. This new method was applied to the enantioselective synthesis of cyanolide A and its aglycone.
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Affiliation(s)
- Gidget C Tay
- Department of Chemistry, 1102 Natural Sciences II, University of California-Irvine, Irvine, California 92697, USA
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10
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Mineno M, Sawai Y, Kanno K, Sawada N, Mizufune H. Double Reformatsky Reaction: Divergent Synthesis of δ-Hydroxy-β-ketoesters. J Org Chem 2013; 78:5843-50. [DOI: 10.1021/jo400408t] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masahiro Mineno
- Chemical
Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited, 2-17-85, Juso-honmachi,
Yodogawa-ku, Osaka 532-8686, Japan
| | - Yasuhiro Sawai
- Chemical
Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited, 2-17-85, Juso-honmachi,
Yodogawa-ku, Osaka 532-8686, Japan
| | - Kazuaki Kanno
- Chemical
Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited, 2-17-85, Juso-honmachi,
Yodogawa-ku, Osaka 532-8686, Japan
| | - Naotaka Sawada
- Chemical
Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited, 2-17-85, Juso-honmachi,
Yodogawa-ku, Osaka 532-8686, Japan
| | - Hideya Mizufune
- Chemical
Development Laboratories, CMC Center, Takeda Pharmaceutical Company Limited, 2-17-85, Juso-honmachi,
Yodogawa-ku, Osaka 532-8686, Japan
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11
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Harichandran G, Amalraj SD, Shanmugam P. A Facile and Efficient Solid Supported, One-Pot Synthesis of Functionalized Piperidine Derivatives Catalyzed by Amberlite IRA400-Cl Resin/I2/KI via Multicomponent Reaction. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1516] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gurusamy Harichandran
- Department of Polymer Science; University of Madras; Guindy Campus; Chennai; 600 025; India
| | | | - Ponnusamy Shanmugam
- Organic Chemistry Laboratory; Central Leather Research Institute; Adyar; Chennai; 600 020; India
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12
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Yao H, Ren J, Tong R. A short and flexible route to tetrahydropyran-4-ones via conjugated nitrile oxidescycloaddition and oxa-Michael cyclization: a concise diastereoselective total synthesis of (±)-diospongin A. Chem Commun (Camb) 2013; 49:193-5. [DOI: 10.1039/c2cc37772a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Clarke PA, Ermanis K. Synthesis of the C20–C32 Tetrahydropyran Core of the Phorboxazoles and the C22 Epimer via a Stereodivergent Michael Reaction. Org Lett 2012; 14:5550-3. [DOI: 10.1021/ol3026523] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul A. Clarke
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Kristaps Ermanis
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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14
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Saha P, Bhunia A, Saikia AK. Synthesis of 2,3,5,6-tetrasubstituted tetrahydropyrans via (3,5)-oxonium-ene reaction. Org Biomol Chem 2012; 10:2470-81. [DOI: 10.1039/c2ob06832j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Huang S, Du G, Lee CS. Construction of the Tricyclic Furanochroman Skeleton of Phomactin A via the Prins/Conia-Ene Cascade Cyclization Approach. J Org Chem 2011; 76:6534-41. [DOI: 10.1021/jo200644t] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuangping Huang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Guangyan Du
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Chi-Sing Lee
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
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16
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Clarke PA, Sellars PB, Mistry N. Diastereoselective synthesis of functionalized 2-methyltetrahydropyran-4-ones. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.05.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Iqbal M, Mistry N, Clarke PA. An asymmetric Maitland–Japp reaction: a highly enantioselective synthesis of tetrahydropyran-4-ones. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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A new strategy for the synthesis of substituted dihydropyrones and tetrahydropyrones via palladium-catalyzed coupling of thioesters. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.03.114] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Tenenbaum JM, Morris WJ, Custar DW, Scheidt KA. Synthesis of (-)-okilactomycin by a Prins-type fragment-assembly strategy. Angew Chem Int Ed Engl 2011; 50:5892-5. [PMID: 21560215 DOI: 10.1002/anie.201102037] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Jason M Tenenbaum
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Silverman Hall, Northwestern University, Evanston, IL 60208, USA
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20
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Tenenbaum JM, Morris WJ, Custar DW, Scheidt KA. Synthesis of (−)-Okilactomycin by a Prins-Type Fragment-Assembly Strategy. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Dyachenko VD, Karpov EN. Aliphatic aldehydes in the synthesis of carbo- and heterocycles: Part II. Synthesis of six- and seven-membered rings, bicyclic compounds, and macrocycles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2011. [DOI: 10.1134/s1070428011010015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Clarke PA, Santos S, Mistry N, Burroughs L, Humphries AC. The Asymmetric Maitland−Japp Reaction and Its Application to the Construction of the C1−C19 Bis-pyran Unit of Phorboxazole B. Org Lett 2011; 13:624-7. [DOI: 10.1021/ol102860r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul A. Clarke
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Soraia Santos
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Nimesh Mistry
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Laurence Burroughs
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
| | - Alexander C. Humphries
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, U.K., and Department of Chemistry, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, U.K
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23
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Saha P, Gogoi P, Saikia AK. Synthesis of oxabicyclo[3.3.1]nonenes and substituted tetrahydropyrans via (3,5)-oxonium-ene reaction. Org Biomol Chem 2011; 9:4626-34. [DOI: 10.1039/c1ob05172e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Synthetic studies on the phorboxazoles: a short synthesis of an epi-C23 tetrahydropyran core. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Touré BB, Hall DG. Natural Product Synthesis Using Multicomponent Reaction Strategies. Chem Rev 2009; 109:4439-86. [PMID: 19480390 DOI: 10.1021/cr800296p] [Citation(s) in RCA: 1299] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Barry B. Touré
- Department of Oncology Chemistry, Novartis Institutes for Biomedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Dennis G. Hall
- Department of Oncology Chemistry, Novartis Institutes for Biomedical Research, Inc., 250 Massachusetts Avenue, Cambridge, Massachusetts 02139, and Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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26
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Hu XH, Liu F, Loh TP. Stereoelectronic versus Steric Tuning in the Prins Cyclization Reaction: Synthesis of 2,6-trans Pyranyl Motifs. Org Lett 2009; 11:1741-3. [DOI: 10.1021/ol900196w] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xu-Hong Hu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Feng Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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27
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Synthesis of six-membered oxygenated heterocycles through carbon–oxygen bond-forming reactions. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.092] [Citation(s) in RCA: 212] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Clarke PA, Zaytzev AV, Whitwood AC. Pot, atom and step economic (PASE) synthesis of highly functionalized piperidines: a five-component condensation. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.141] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Rosiak A, Frey W, Christoffers J. Synthesis of Tetrahydropyran-4-ones and Thiopyran-4-ones from Donor-Substituted α-Bromostyrene Derivatives. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600372] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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30
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Clarke PA, Santos S. Strategies for the Formation of Tetrahydropyran Rings in the Synthesis of Natural Products. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500964] [Citation(s) in RCA: 280] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paul A. Clarke
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
- Address from January 1, 2006: Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Soraia Santos
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
- Address from January 1, 2006: Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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31
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Clarke PA, Martin WH. Exploiting the Maitland–Japp reaction: a synthesis of (±)-centrolobine. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.04.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Clarke PA, Martin WHC, Hargreaves JM, Wilson C, Blake AJ. The one-pot, multi-component construction of highly substituted tetrahydropyran-4-ones using the Maitland–Japp reaction. Org Biomol Chem 2005; 3:3551-63. [PMID: 16172694 DOI: 10.1039/b508252h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot, multi-component reaction for the synthesis of highly substituted tetrahydropyran-4-ones, based on the long forgotten Maitland-Japp reaction has been realised. Two different aldehydes and a derivative of a beta-ketoester can be condensed regioselectively in the presence of a Lewis acid to form tetrahydropyran-4-ones in excellent yields. The diastereoselectively of the reaction was found to be dependant upon the nature of the Lewis acid and the temperature at which the reaction was carried out. This procedure was also extended to the formation of tetrahydropyran-4-ones in greater than 95% enantiomeric excess.
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Affiliation(s)
- Paul A Clarke
- School of Chemistry, University of Nottingham, University Park, Nottingham, Notts, UK NG7 2RD.
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